15736961 has 2 divisors, whose sum is σ = 15736962. Its totient is φ = 15736960.

The previous prime is 15736949. The next prime is 15736967. The reversal of 15736961 is 16963751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15649936 + 87025 = 3956^2 + 295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15736961 is a prime.

It is not a weakly prime, because it can be changed into another prime (15736967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7868480 + 7868481.

It is an arithmetic number, because the mean of its divisors is an integer number (7868481).

Almost surely, 2^15736961 is an apocalyptic number.

It is an amenable number.

15736961 is a deficient number, since it is larger than the sum of its proper divisors (1).

15736961 is an equidigital number, since it uses as much as digits as its factorization.

15736961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 15736961 is about 3966.9838668691. The cubic root of 15736961 is about 250.5957047493.

The spelling of 15736961 in words is "fifteen million, seven hundred thirty-six thousand, nine hundred sixty-one".